#
# Tests to see if command exists
#
Function Test-CommandExists {
    Param ($command)
    Try {
        if(Get-Command $command) {
            RETURN $true
        }
    } Catch {
        RETURN $false
    }
}


#
# Check prerequisites
#
If (-not (Test-CommandExists "cmake" -ErrorAction SilentlyContinue)) {
    Write-Error "Cmake not found. Aborting." -ErrorAction Stop
}


# https://patrickwbarnes.com/articles/using-msbuild-with-powershell/
#
# Find vswhere (installed with recent Visual Studio versions).
#
If ($vsWhere = Get-Command "vswhere.exe" -ErrorAction SilentlyContinue) {
    $vsWhere = $vsWhere.Path
} ElseIf (Test-Path "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe") {
    $vsWhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
} Else {
    Write-Error "vswhere not found. Aborting." -ErrorAction Stop
}


#
# Get path to Visual Studio installation using vswhere.
#
$vsPath = &$vsWhere `
    -latest `
    -products * `
    -version "[16.0,17.0)" `
    -requires Microsoft.Component.MSBuild `
    -property installationPath
If ([string]::IsNullOrEmpty("$vsPath")) {
    Write-Error "Failed to find Visual Studio 2019 installation. Aborting." -ErrorAction Stop
}


#
# Make sure the Visual Studio Command Prompt variables are set.
#
If (-not (Test-Path env:LIBPATH)) {
    # Load VC vars
    Push-Location "${vsPath}\VC\Auxiliary\Build"
    Try {
        cmd /c "vcvarsall.bat x64&set" |
        ForEach-Object {
            If ($_ -match "=") {
                $v = $_.split("=")
                Set-Item -Force -Path "ENV:\$($v[0])" -Value "$($v[1])"
            }
        }
    } Finally {
        Pop-Location
    }
}


#
# Set undefined environment variables
#
$env:SYNERGY_NO_LEGACY = 1
If (-not (Test-Path env:SYNERGY_BUILD_TYPE)) {
    $env:SYNERGY_BUILD_TYPE = "Release"
}
If (-not (Test-Path env:SYNERGY_BUILD_DIRECTORY)) {
    $env:SYNERGY_BUILD_DIRECTORY = '.\build'
}


#
# Create build folder and make builds
#
New-Item `
    -Path . `
    -Name $env:SYNERGY_BUILD_DIRECTORY `
    -ItemType "directory" `
    -ErrorAction SilentlyContinue | Out-Null
Push-Location $env:SYNERGY_BUILD_DIRECTORY
Try {
    cmake `
        -G "Visual Studio 16 2019" `
        -DCMAKE_BUILD_TYPE=$env:SYNERGY_BUILD_TYPE `
        ..

    msbuild synergy-core.sln `
        /p:Platform="x64" `
        /p:Configuration=$env:SYNERGY_BUILD_TYPE `
        /m `
        /t:synergys `
        /t:synergyc
    Compress-Archive `
        -Path ".\bin\${env:SYNERGY_BUILD_TYPE}\*" `
        -DestinationPath "synergy-core-win-x64.zip"
    Write-Output "::set-output name=location::build\synergy-core-win-x64.zip"
    Write-Output "::set-output name=name::synergy-core-win-x64.zip"
} Finally {
    Pop-Location
}
